NAME¶

b3sum - b3sum

SYNOPSIS¶

b3sum [OPTIONS] [FILE]...

DESCRIPTION¶

OPTIONS¶

--keyed

Use the keyed mode, reading the 32-byte key from stdin

--derive-key <CONTEXT>

Use the key derivation mode, with the given context string

Cannot be used with --keyed.

-l, --length <LEN>

The number of output bytes, before hex encoding

[default: 32]

--seek <SEEK>

The starting output byte offset, before hex encoding

[default: 0]

--num-threads <NUM>

The maximum number of threads to use

By default, this is the number of logical cores. If this flag is omitted, or if its value is 0, RAYON_NUM_THREADS is also respected.

--no-mmap

Disable memory mapping

Currently this also disables multithreading.

--no-names

Omit filenames in the output

--raw

Write raw output bytes to stdout, rather than hex

--no-names is implied. In this case, only a single input is allowed.

--tag

Output BSD-style checksums: BLAKE3 ([FILE]) = [HASH]

-c, --check

Read BLAKE3 sums from the [FILE]s and check them

--quiet

Skip printing OK for each checked file

Must be used with --check.

-h, --help

Print help (see a summary with '-h')

-V, --version

Print version